CAPTURE: Carbon dynamics across Arctic landscape gradients: past, present and future

Principal Investigator: Dr. Narasinha Shurpali

Funding period: September 2016 – August 2020

Funding Agency: Academy of Finland

Other consortium partners: University of Helsinki (Prof. Atte Korhola, the lead PI) and Finnish Meteorological Institute, Helsinki and many international collaborators

CAPTURE addresses one of the grand research challenges of the 21st century: the role of the carbon cycle in regulating Earth’s climate. In particular, C dynamics of Arctic regions are a highly uncertain component of global C budgets. The overriding objective of CAPTURE is to enhance our understanding of the fate and transfer of C across the Arctic landscape gradients and the consequences for atmospheric GHG (CO2, CH4) concentrations and climate. One of the main originalities of the research is assessing the C cycling processes across spatial (from experimental plots to small catchments to regions and finally to a wider segment of the Euro-Asian Arctic) and temporal (the past two millennia, present, future) scales, in order to advance our understanding of C dynamics, climate variability and the risks of unwelcome C cycle feedbacks.

 

The fragmented nature of the arctic landscapes (Seida, Northwestern Siberia, Photography by Dr. Tarmo Virtanen, University of Helsinki). The various land cover types (LCTs) in the main study region- a) forest stand, b) moist shrub tundra heath, c) dry shrub tundra heath, d) Betula nana tundra heath, e) dry lichen tundra heath, f) moist bog, g) dry bog, h) willow fen, i) Carex fen, j) Eriophorum fen, k) lake, l) bare peat.